Butterfly valve JIS Short Double Flanged - S36 | Alfa Europe - Alfa Europe
Butterfly valve JIS Short Double Flanged - S36 | Alfa Europe - Alfa Europe
Butterfly valve JIS Short Double Flanged - S36 | Alfa Europe - Alfa Europe
Butterfly valve JIS Short Double Flanged - S36 | Alfa Europe - Alfa Europe

Butterfly valve JIS Short Double Flanged - S36 | Alfa Europe

Flanged Butterfly Valve JIS Alfa Europe S36

The S36 is a short double flanged butterfly valve with a bonded liner, designed for pipelines with JIS B 2211 5K / 10K flanges. It covers DN50–DN1000, with face-to-face dimensions according to JIS F-7480, primarily used in marine auxiliary isolation flow networks.

Technical Specifications

  • Design: EN 593
  • Connection: JIS double flanged, short pattern
  • Flanges: JIS B 2211 5K / 10K
  • Pressure: various classes up to 16 bar, depending on DN and execution
  • Top Flange: ISO 5211
  • Vacuum: up to 1×10⁻³ / 0.2 Torr absolute

Materials and Seats

Available body materials include EN-JS1030 ductile iron, ASTM A216 WCB, SS 1.4408, and BS 1400 AB2 aluminum bronze. Discs are available in BS 1400 AB2, EN-JS1030, SS 1.4408, or SD 2507, with shafts in SS 1.4122, SS 431, SS 1.4462, or SD F53.

Seat Options:

  • NBR: -15 to +80 °C
  • EPDM: -23 to +120 °C
  • Viton: 0 to +200 °C
  • Silicone: -40 to +250 °C

The product page specifies a temperature range of -23 to +120 °C and NBR seat as a registration option; actual seat and temperature limits should be confirmed based on the fluid for ordering.

Operation

  • Bare shaft: DN50–DN1000 for actuator via ISO 5211.
  • Lever operated: DN50–DN200.
  • Gearbox operated: DN50–DN1000, suitable for larger diameters and increased handling torque.

Typical Applications

Used in seawater cooling, freshwater, ballast, bilge, HVAC systems on ships, and auxiliary JIS lines. For seawater, aluminum bronze, stainless steel, or duplex parts are considered, depending on chlorides, temperature, and residence time.

FAQ

When to choose S36 over wafer?
When installation requires a JIS flanged valve with specific face-to-face JIS F-7480.

Is it a control valve?
Primarily on/off. For throttling, speed, ΔP, torque, and liner wear must be checked.

Standard (Options)
  • JIS
Connection (Options)
  • Double Flanged
Material (Options)
  • EN-JS 1030 (GGG40) Ductile Iron
  • 1.4408
  • ASTM A216 WCB
  • BS 1400 AB2 (Aluminium Bronze)
Pressure Rating (Options)
  • 5K
  • 10K
Seat (Options)
  • NBR

Datasheet and documents

Description

Range: Size DN50 to DN1000

End connection: JIS Double flanged - Bonded liner

Flange connection: JIS B 2211 5K, 10K

Temperature range: -23 / + 120 °C

Face to face: acc. JIS F-7480

Certificates

DNV CertificateLloyd's Register Certificate

ABS CertificateCCS Certificate

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